CN217605609U - Liquid level self-balancing based work control system and temperature and humidity test equipment - Google Patents
Liquid level self-balancing based work control system and temperature and humidity test equipment Download PDFInfo
- Publication number
- CN217605609U CN217605609U CN202221005852.6U CN202221005852U CN217605609U CN 217605609 U CN217605609 U CN 217605609U CN 202221005852 U CN202221005852 U CN 202221005852U CN 217605609 U CN217605609 U CN 217605609U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- control station
- temperature
- water
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model belongs to the field of temperature and humidity test equipment, and provides a work control system and temperature and humidity test equipment based on liquid level self-balancing, which comprises a first liquid level control station, a controlled station and a work control station, in order to solve the technical problem of how to maintain liquid level balance under the condition of continuous liquid supply; a first overflow pipe used for maintaining a first designated liquid level is arranged in the first liquid level control station; a first liquid inlet is formed in the upper part of the first liquid level control station; the controlled station is respectively communicated with the first liquid level control station and the working control station to form corresponding communicators, so that the liquid levels in the controlled station and the working control station can be maintained at least at a first designated liquid level. And the temperature and humidity test equipment continuously supplies liquid to a first liquid inlet of a first liquid level control station through a water pump, and the controlled station is a steam generator. The utility model discloses can avoid the untimely condition of moisturizing, supply water in succession and can prevent the pipe blockage, avoid the water pump frequently to start increase of service life.
Description
Technical Field
The utility model belongs to temperature and humidity test equipment field for to the corrosion resistance detection of material under the high temperature and high humidity environment.
Background
At present, the temperature and humidity test box uses an intermittent water supplementing system during humidification, and a PLC is mainly used for starting a water pump at regular time so as to meet water supplementing requirements. For example, chinese patent publication CN213133232U discloses a humidification water path circulation system for a temperature and humidity test chamber, which comprises a water level control cup, a humidification barrel, a water pump and a water tank, wherein the water tank, the water pump, the water level control cup and the humidification barrel are sequentially connected to form a liquid supply path, the water level control cup and the water pump are connected to form a liquid supply circulation loop, a vapor outlet of the humidification barrel is connected to a vapor inlet of the test chamber, the test chamber and the water pump are connected to form a liquid recovery path, and a pressure balance pipe is further connected between the water level control cup and the humidification barrel. The water pump is electrically connected with the PLC. The PLC controller controls the water pump 4 to pump water at regular time by taking preset T1+ T2 as a period. The PLC controller sends a starting signal to the water pump, the water pumping timing is T1, the water stopping timing is T2, and the like, so that the water pump pumps water to the water level control cup at regular time, the water level of the water level control cup is always kept at the same height, and the control of the liquid level in the humidification barrel is achieved.
The water in the water tank is pumped into the water level control cup 1 through the second water inlet, and then is pumped into the humidifying barrel through the second water outlet and the first water inlet, when the water level on one side in the water level control cup is higher than the overflow plate, the water on the side overflows to the other side in the water level control cup through the overflow plate, flows to the water inlet end of the water pump through the overflow port, and then is pumped into the water level control cup through the water pump, and the liquid supply circulation is realized. When the test box is in the circulation mode, the first valve 6 is opened, the third valve 10 is closed, the condensed water discharged by the test box is recovered, and the condensed water is pumped into the humidifying barrel 8 through the water level control cup 1 by the water pump 4.
The prior art has the following defects: 1) Because of continuous high humidity and large water demand, the electric appliance water pump is frequently started and stopped due to intermittent water supplement, the current of the pump can rise when the pump is started, and the service life of the water pump and the service life of the electric appliance can be greatly influenced due to continuous current fluctuation naturally. 2) The PLC is used for starting at fixed time, in the test process, the required humidity is not uniform, and the water used for high humidity and low humidity is different, so that water can be possibly supplemented in time when the required humidity is high; 3) The humidification barrel is not protected by the water level, the barrel is communicated with the U-shaped pipe, if the pipe is blocked or broken, water cannot enter, humidification continues to operate, and dry heating occurs to damage the barrel.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve the problems existing in the prior art, and provides a liquid level self-balancing based work control system, which can maintain liquid level balance under the condition of continuous liquid supply.
The utility model discloses a realize through following technical scheme: a work control system based on liquid level self-balancing comprises a first liquid level control station, a controlled station and a work control station; one end of a first overflow pipe extends into the first liquid level control station, and an overflow inlet of the first overflow pipe is not lower than a first designated liquid level; a first liquid inlet is formed in the upper part of the first liquid level control station;
the controlled station is respectively communicated with the first liquid level control station and the working control station to form corresponding communicators, so that the liquid levels in the controlled station and the working control station can be maintained at least at a first designated liquid level;
a liquid level sensing device is arranged in the work control station, and a liquid level signal is sensed by the liquid level sensing device and sent to the controller; the controller is used for controlling the working state of a working element in the controlled station according to the liquid level signal.
Furthermore, liquid is continuously supplied to the first liquid inlet of the first liquid level control station through a water pump.
The utility model also provides a temperature and humidity test device, which avoids the fault caused by liquid level unbalance while the water pump continuously operates, in particular to a working control system based on liquid level self-balancing; the controlled station is a steam generator, and the working element in the controlled station is a heating element; the first specified level is the lowest level at which the heating element can be fully submerged; the steam generator feeds steam into the test chamber through a steam guide pipe.
Furthermore, a wet bulb temperature detection device is arranged in the test box.
Furthermore, the wet bulb temperature detection device comprises a wet bulb water cup and a wet bulb thermometer, and the wet bulb water cup is used for providing moisture for the wet bulb thermometer through the water absorption device; the wet bulb water cup is communicated with the second liquid level control station to form a communicating vessel, and a second liquid inlet is formed in the top of the second liquid level control station; the second liquid level control station is also communicated with a second overflow pipe, and an overflow inlet of the second overflow pipe is not lower than a second specified liquid level; the second liquid level is the lowest water level that can ensure the water absorption device to absorb water.
Still further, an overflow outlet of the second overflow pipe is communicated with a first liquid inlet of the first liquid level control station; the water pump is communicated with the second liquid inlet through a water supply pipe.
Further, a temperature sensor is arranged in the steam generator, and the temperature sensor is arranged near the heating element and above the heating element; the controller obtains the temperature in the steam generator through the temperature sensor and can control the heating element to stop working when the temperature in the steam generator exceeds a water temperature threshold value.
Compared with the prior art, the utility model discloses a following beneficial effect:
1. because the first overflow pipe arranged in the first liquid level control station can overflow when the liquid level is higher than the overflow port of the first overflow pipe to maintain the liquid level, the liquid level control is realized through the first liquid level control station, so that the liquid levels of the controlled station and the work control station can be maintained at least at a first designated liquid level, the liquid level can be maintained even if the liquid is continuously supplied, and the safety requirement of continuous liquid supply is met. Meanwhile, the controller controls the working state of the working element in the controlled station according to the liquid level signal of the liquid level sensing device in the work control station, the working element is prevented from working below the designated liquid level, and the work safety is guaranteed.
2. Because continuous liquid supply is realized, the situation of untimely water supplement can be avoided, and simultaneously, because water continuously flows in the pipeline, the deposition of impurities on the pipeline is reduced, and the pipeline blockage can be prevented. More importantly, the frequent starting of the water pump and the heating element is avoided, and the service life is prolonged.
3. The wet bulb water cup is communicated with the second liquid level control station to form a communicating vessel, so that the liquid level of the wet bulb water cup can be maintained at a position not lower than a second specified liquid level, and normal detection of the temperature of the wet bulb is supported.
4. An overflow outlet of the second overflow pipe is communicated with a first liquid inlet of the first liquid level control station; the water pump is communicated with the second liquid inlet through a water supply pipe, and the redistribution of moisture is realized through a second overflow pipe, so that the first liquid level control station and the first liquid level control station share the same water pump, the structure is simplified, and the energy is saved.
5. The controller passes through temperature sensor acquires the temperature in the steam generator to can control heating element stop work when the temperature in the steam generator exceeds the temperature threshold value, when taking place that the pipeline breaks or blocks up and lead to the linker to become invalid, can judge whether unusual through the temperature in the steam generator, if when the lack of water, the temperature obviously exceeds the temperature threshold value, controls heating element stop work when taking place unusual, thereby plays overtemperature protection effect.
Drawings
Fig. 1 is a water circuit schematic diagram of a temperature and humidity test device.
Detailed Description
Because the temperature and humidity test equipment comprises a liquid level self-balancing based work control system, the temperature and humidity test equipment is only taken as an example for description in the specific embodiment.
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1, a temperature and humidity test apparatus includes a liquid level self-balancing based work control system and a test chamber 4.
The work control system based on liquid level self-balancing comprises a first liquid level control station 1, a controlled station 3 and a work control station 2; one end of a first overflow pipe 101 extends into the first liquid level control station 1, and an overflow inlet of the first overflow pipe 101 is not lower than a first designated liquid level; the upper part of the first liquid level control station 1 is provided with a first liquid inlet, and liquid is continuously supplied to the first liquid inlet of the first liquid level control station 1 through a water pump 9.
The controlled 3 station is respectively communicated with the first liquid level control station 1 and the working control station 2 to form corresponding communicators, so that the liquid levels in the controlled 3 station and the working control station 2 can be maintained at least at a first designated liquid level.
A liquid level sensing device 201 (an electronic floating ball or a liquid level sensor) is arranged in the work control station 2, and a liquid level signal is sensed by the liquid level sensing device 201 and sent to the controller; the controller is used for controlling the working state of working elements in the controlled station 3 according to the liquid level signal.
The steam generator is used as a controlled station 3, and the working element in the controlled station 3 is a heating element 301; the first specified level refers to the lowest level at which the heating element 301 can be fully submerged; the steam generator feeds steam into the test chamber through a steam guide pipe.
In order to detect the temperature in the test chamber 4, a dry-bulb temperature detection device 7 and a wet-bulb temperature detection device are provided in the test chamber 4. The wet bulb temperature detection device comprises a wet bulb water cup 6 and a wet bulb thermometer 601, wherein the wet bulb water cup 6 is used for providing moisture for the wet bulb thermometer 601 through a water absorption device (such as a gauze bulb wrapped on the wet bulb thermometer); the wet bulb water cup 6 is communicated with the second liquid level control station 5 to form a communicating device, a second liquid inlet is formed in the top of the second liquid level control station 5, the second liquid level control station 5 is also communicated with a second overflow pipe, and an overflow inlet of the second overflow pipe is not lower than a second specified liquid level; the second liquid level is the lowest water level which can ensure that the water absorption device absorbs water.
In order to simplify the structure and save energy: an overflow outlet of the second overflow pipe is communicated with a first liquid inlet of the first liquid level control station 1; the water pump 9 is communicated with the second liquid inlet through a water supply pipe, and a valve 501 can be further arranged on the water supply pipe.
In order to form the communicating vessels, each related component needs to be communicated with the atmosphere, and a mode of directly forming air vents on the related component may be adopted, in this specific embodiment, the first liquid level control station 1, the second liquid level control station 5 and the work control station 2 are all provided with air vents for communicating with the atmosphere, and the air vents may also be provided with air vents, such as the air vents 202 on the work control station 2. In addition, the steam generator as the controlled station 3 communicates with the atmosphere in the following manner: the steam generator is communicated with a test box 4 through a steam guide pipe, and a pressure balance valve 401 communicated with the atmosphere is arranged on the test box 4, so that the steam generator is communicated with the atmosphere; the pressure balance valve 401 is automatically opened when the pressure of the steam in the test chamber 4 is greater than the atmospheric pressure, thereby maintaining the balance pressure.
In order to improve the utilization efficiency of water resources and form circulating water supply, the water circulation system further comprises a water storage tank 8, wherein the water pump 9 is a submersible pump and takes water from the water storage tank 8; the overflow outlet of the first overflow pipe 101 of the first liquid level control station 1 communicates with the upper part of the storage tank 8. A liquid level floating ball 10 can be further arranged in the water storage tank to observe the water level in the water storage tank, so that water can be timely supplemented to the water storage tank 8 (if the water level is close to the submersible pump), and the normal operation of the water pump 9 is guaranteed.
In order to reduce the occurrence of safety accidents, a temperature sensor 302 is further arranged in the steam generator, and the temperature sensor 302 is arranged near the heating element 301 and above the heating element 301; the controller obtains the temperature inside the steam generator via the temperature sensor 302 and is able to control the heating element 301 to stop operating when the temperature inside the steam generator exceeds a water temperature threshold. For example, when the communicating vessel fails due to the rupture or blockage of the pipeline, whether an abnormality occurs can be judged according to the temperature in the steam generator, if water is short, the temperature obviously exceeds the water temperature threshold, and the heating element 301 is controlled to stop working when the abnormality occurs, so that the overtemperature protection effect is achieved.
In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The above technical solution is only one implementation of the present invention, and for those skilled in the art, based on the principle disclosed in the present invention, various modifications or variations can be easily made, and not limited to the technical solution described in the above specific embodiments of the present invention, so that the foregoing description is only preferred, and not restrictive.
Claims (10)
1. The utility model provides a work control system based on liquid level self-balancing which characterized in that: comprises a first liquid level control station, a controlled station and a working control station; one end of a first overflow pipe extends into the first liquid level control station, and an overflow inlet of the first overflow pipe is not lower than a first designated liquid level; a first liquid inlet is formed in the upper part of the first liquid level control station;
the controlled station is respectively communicated with the first liquid level control station and the working control station to form corresponding communicators, so that the liquid levels in the controlled station and the working control station can be maintained at least at a first designated liquid level;
a liquid level sensing device is arranged in the work control station, and a liquid level signal is sensed by the liquid level sensing device and sent to the controller; the controller is used for controlling the working state of the working element in the controlled station according to the liquid level signal.
2. The liquid level self-balancing based work control system of claim 1, wherein: and continuously supplying liquid to a first liquid inlet of the first liquid level control station through a water pump.
3. The utility model provides a temperature and humidity test equipment which characterized in that: the liquid level self-balancing based work control system comprises the liquid level self-balancing based work control system of claim 2; the controlled station is a steam generator, and the working element in the controlled station is a heating element; the first specified level refers to a lowest level at which the heating element can be fully submerged; the steam generator feeds steam into the test chamber through a steam guide pipe.
4. The temperature and humidity test apparatus of claim 3, wherein: and a wet bulb temperature detection device is arranged in the test box.
5. The temperature and humidity test apparatus according to claim 4, wherein: the wet bulb temperature detection device comprises a wet bulb water cup and a wet bulb thermometer, and the wet bulb water cup is used for providing moisture for the wet bulb thermometer through the water absorption device; the wet bulb water cup is communicated with the second liquid level control station to form a communicating vessel, and a second liquid inlet is formed in the top of the second liquid level control station; the second liquid level control station is also communicated with a second overflow pipe, and an overflow inlet of the second overflow pipe is not lower than a second specified liquid level; the second liquid level is the lowest water level that can ensure the water absorption device to absorb water.
6. The temperature and humidity test apparatus of claim 5, wherein: an overflow outlet of the second overflow pipe is communicated with a first liquid inlet of the first liquid level control station; the water pump is communicated with the second liquid inlet through a water supply pipe.
7. The temperature and humidity test apparatus of claim 3, wherein: and a pressure balance valve communicated with the atmosphere is arranged on the test box.
8. The temperature and humidity test apparatus of claim 5, wherein: the top of the first liquid level control station, the top of the second liquid level control station and the top of the work control station are all provided with vent holes communicated with the atmosphere.
9. The temperature and humidity test apparatus according to claim 3, wherein: a temperature sensor is also arranged in the steam generator and is arranged near the heating element and above the heating element; the controller obtains the temperature in the steam generator through the temperature sensor and can control the heating element to stop working when the temperature in the steam generator exceeds a water temperature threshold value.
10. The temperature and humidity test apparatus according to claim 3 or 6, wherein: the water pump is a submersible pump and takes water from the water storage tank; and the overflow outlet of the first overflow pipe of the first liquid level control station is communicated with the upper part of the water storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221005852.6U CN217605609U (en) | 2022-04-28 | 2022-04-28 | Liquid level self-balancing based work control system and temperature and humidity test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221005852.6U CN217605609U (en) | 2022-04-28 | 2022-04-28 | Liquid level self-balancing based work control system and temperature and humidity test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217605609U true CN217605609U (en) | 2022-10-18 |
Family
ID=83568041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221005852.6U Active CN217605609U (en) | 2022-04-28 | 2022-04-28 | Liquid level self-balancing based work control system and temperature and humidity test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217605609U (en) |
-
2022
- 2022-04-28 CN CN202221005852.6U patent/CN217605609U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108917042A (en) | The adjusting method of humidifier, air-conditioning and humidifier | |
| JP2009522723A (en) | Response to gas uptake into the fuel cell refrigerant | |
| CN102435546B (en) | Supercritical autoclave bubbling deoxygenation system | |
| CN217605609U (en) | Liquid level self-balancing based work control system and temperature and humidity test equipment | |
| CN209055442U (en) | A kind of cold humidification illumination temperature and humidity combined test chamber | |
| CN111059726A (en) | Dehumidifier control method and device, storage medium and dehumidifier | |
| CN103779795A (en) | Dehumidification device for electric cabinets | |
| KR101155707B1 (en) | Gas boiler having cistern tank combined with opened and closed type | |
| CN212910523U (en) | Electric automation control's heat dissipation formula regulator cubicle | |
| CN214172408U (en) | Humidifier and air conditioner | |
| CN210429974U (en) | Fuel cell humidification system | |
| CN112325600B (en) | Paint slag drying system and control method | |
| CN207004761U (en) | Combination pump with cooling water circulation | |
| CN213841130U (en) | Humidifying device and air conditioner | |
| CN114924125A (en) | Insulation resistance testing device and insulation resistance testing method | |
| CN211027238U (en) | L type steam cleaning equipment | |
| CN208151008U (en) | A kind of constant-pressure water supplementing vacuum degassing group | |
| CN207132322U (en) | A kind of burn-out-proof equipment for drying monitored in real time | |
| CN112097325A (en) | Air conditioner and humidifying method of air conditioner | |
| CN117030951B (en) | Acid mist waste gas detection system and purifying tower with same | |
| CN206144771U (en) | Small -size pump station intelligent control device | |
| CN205062893U (en) | Circulating water system ordinary pressure exhaust level pressure moisturizing device | |
| CN118086934A (en) | Proton exchange membrane water electrolysis system and control method thereof | |
| CN218544658U (en) | Constant temperature and humidity machine | |
| CN218880074U (en) | PEM pure water hydrogen production system with self-circulation cooling water supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |